Revolver



J. BOLAND.

REVOLVER.

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ments of my improvement.

UNITED STATES PATENT OFFICE.

JAMES BOLAND, OF NORWICH, CONNECTICUT.

REVOLVER.

SPECIPICATIONiorming part of Letters Patent No. 353,914, datedDecember.7, 1886.

Application filed July 30, 1886. Serial No. $109,520.

To. aZZ whom it may concern:

Be it known that I, JAMES BOLAND, a citizen Of the United States,residing at Norwich, New London county, Connecticut, have invented acertain new and useful Improvement in Revolving Fire-Arms, whichimprovement is fully set forth and described in the followingspecification, reference being had to the accompanying drawings.

My invention is in that class of revolving arms which have the barreland frame sections hinged together, the several parts being soconstructed and connected that the movement of the barrel as it swingsforward forces the cartridgeejector outward until the empty shells dropfrom the cylinder. Said ejecting mechanism is then automaticallyreleased and returned to its closed position within the cylinder readyfor reloading.

It is my purpose to improve the particular device which retains theso-called lifter or idler in a fixed position as the barrel is swungforward.

Referring to the drawings hereunto annexed, Figure 1 is a side view of arevolver having said improved device attached thereto. Fig. 2 shows sideand rear views of the barrel detached. Fig. 3 is a detached View ofthelifter a. Fig. 4 is a perspective view of the pawl, spring, and nut,which form the essential ele- Fig. 5 is a crosssection, considerablyenlarged, of the hingejoint, taken on line x x of Fig. 1.

The letter Aindicates the frame of the arm, and B the barrel, eachprovided with hingeleaves and connected forward of the cylinder, asillustrated in Fig. 1. \Vithin the cylinder C is a suitablecartridge-ejector having the usual stem extending into the barrel andheld forward normally by a spiral spring; but as these devices are wellknown in this class of arms, I have thought it unnecessary to showdetailed drawings of them here. The barrelhinge is formed preferablywith two leaves, which enter between corresponding leaves on theframe A,said barrel-leaves bei ng separated adistancesufficienttoreceivetheliftera. This lifter is provided with anintegral or fixed horn, b, to engage the end of the ejector-stem. Thebarrel, frame, and lifter,after being properly assembled, are held inplace by a counterbored screw, 0, which forms the hinge-pivot.

(No model.)

Having brought the arm to the-construction described, it becomesnecessary to provide a device which will lock together the frame andlifter, so that, as the barrel is swung forward, said lifter will checkthe ejector and cause it to throw out the empty shells. To do this Ihave provided a plate or disk, d, having two integral studs orprojections, c c, the former of which passes through the connterboredscrew 0, the latter reaching through a slot, h, in one leaf of thebarrel, to engage a hole, z, in the lifter. Within the connterboredscrew 1 place a spiral springJc, and then screw a nut, m, onto the stude, the spring acting with a constant tendency to hold disk (1 within itsseat in the hinge, and to force stud 6 forward into the lifter'hole t.(See Fig. 5.)

In order to automatically release the stud c (which is practically apawl) from thelifterhole, I have formed an inclined or wedgeshapedprojection, a, between studs e and e, and a corresponding projection,to, in the end of slot h. As the barrel swings forward, the incline ngradually approaches the incline a, and at the proper instant engagesand forces it outward, thus withdrawing stud e from the lifter andallowing it (the lifter) to snap forward with the ejector-stem. As thebarrel is swung rearward after loading to lock with the frame, springagain brings stud 6 into engagement with the lifter-hole 2'. When it isdesired to open the arm without ejecting the cartridges, suitablepressure of afinger on not m will throw Stud 0 out of engagement withthe lifter, said nut being within convenient reach of the forefinger ofthe left hand as the barrel is grasped in the customary and naturalmanner. In this respect my improved device is much more convenient thanmany of the partially-concealed pawls and latches heretofore used, andthe form of my device is such that it may be easily and cheaply producedand assembled.

My device may be used without the inclined surfaces n and n, in whichcase the lifter is released at the proper time by pressure on nut m,-but I consider the construction here shown far preferable, as it worksautomatically.

Having thus described my invention, I claim as new and wish to secure byLetters Patent 1. In combination with a frame and barrel, hinged as.described, and a lifter locatedbe- ICO tween the hinge-leaves of thebarrel, a pivotserew drilled centrally throughout its entire length,adapted to pass through said frame, barrel, and lifter to interlock saidparts, the

5 longitudinally-movable spring-pressed stud e,

passing through said pivot-screw, having a plate, d, extending aconsiderable distance out- Ward from the center of the hinge, and formedwith stud-e parallel with stud e, and of such 10 length that it mayreach inward through the barrel-hinge to engage a perforation, i, in thesaid lifter, as herein described, and for the object specified.

2. In a revolver of the class referred to, in

15 combination with the frame and a barrel hav- .ively, the saidperforation z and barrel-cam n,

as herein described,and for the object set forth.

JAMES BOLAND.

Witnesses:

FRANK H. ALLEN, TYLER J. HOWARD.

